真空钎焊缺陷描述

真空钎焊缺陷目视

真空钎焊缺陷预防措施

真空钎焊缺陷目视解决措施

 

真空钎焊炉内炉渣太多，掉落在产品表面	见真空钎焊图片	增加烘炉频次	真空钎焊炉烘炉频次1次/半月
产品表面喷铜，粘焊模	见真空钎焊图片	焊模表面刷阻焊剂	见真空钎焊图片
真空钎焊焊模有硬粒，表面隐伤	见真空钎焊图片	装配前用刷子将焊模清理干净	见真空钎焊图片
铜未熔化，表面起鼓	见真空钎焊图片	真空钎焊前仔细检查真空钎焊炉上下门、屏口、碳棒	见真空钎焊图片
装配时夹紧环靠在芯片组件上，造成粘夹紧环	见真空钎焊图片	装配时必须保证夹紧环与法兰、芯片组件间有一定的间隙	见真空钎焊图片
产品组件配合间隙不好，造成白边	见真空钎焊图片	产品装配时保证间隙≤0.07	见真空钎焊图片
阻焊剂未干，钎焊后表面发黑	见真空钎焊图片	阻焊剂必须待干燥后方可装夹	见真空钎焊图片
真空钎焊焊模不平，造成片闭	见真空钎焊图片	必须保证真空钎焊焊模垫块平整度（用直尺检查）	见真空钎焊图片
真空钎焊炉内分压压力不足，产品表面喷铜	见真空钎焊图片	保证真空钎焊炉内分压压力在200～250Pa之间	见真空钎焊图片

东俊真空钎焊工作室 地址:江苏省扬州市维扬路349号 邮政编码：225000 联系人： 蔡东俊 SKYPE:jsyzcdj 联系手机：13905275926 QQ：649200691 MSN：jsyzcdj@126.com E-mail: jsyzcdj@126.com 网址：http://www.brazing.com.cn 新加坡联系地址：10 Anson Road #05-17 联系人： Feng Guo An 联系电话:+65-6756 3629 手机：+0065-6756 3629 传 真: +0065-6754 8382 电子邮件：fengga@el.sg 德国联系地址： Ringenkuhler Straße 26 34298 Helsa 联系人：李向珍 联系电话: 004956049180277 手机： 004956049180277 传 真: 004956049180278 电子邮件info@china-market-expertise.de     Common defects and preventive measures of vacuum brazing products   Vacuum brazing defect description   Vacuum brazing defect visual   Vacuum brazing defect prevention measures    vacuum brazing defect visual solution Too much slag in vacuum brazing furnace, falling on the surface of the product   Increase frequency of  empty furnace heating (without products) Vacuum brazing furnace heating frequency 1 / half months Product surface spray copper, stick welding mold Welding surface brush resistance flux Vacuum brazing die has hard grain, surface hidden injury   Before the assembly with the brush to clean up the welding mould   Copper does not melt, the surface from the drum               Check the vacuum brazing furnace up and down the door, screen mouth, carbon rods carefully before vacuum brazing     The clamping ring is attached to the chip assembly, resulting in a sticky clamping ring   The Assembly must ensure that there is a gap between the clamping ring and flange and chip components. Product components with the gap is not good, resulting in white edge Pressure margin to ensure that the gap ≤ 0.07   The resistance flux is not dry. The surface is black after brazing The flux must be dry before clamping The vacuum brazing is uneven and causes the closure Must ensure that the vacuum brazing welding pad flatness (with ruler check)   Vacuum brazing furnace partial pressure is insufficient, the product surface spray copper   To ensure that the vacuum brazing furnace pressure between 200 ~ 250Pa   Dong Jun vacuum brazing Technology Co., Ltd. Address:China Jiangsu province Yangzhou city Weiyang District Weiyang road 349 Person to Contact: Dong-Jun Cai Switchboard:+86-0-13905275926 Tel:+86-0514-87816911 Fax:+86-0514-87816911 http://www.brazing.com.cn Switchboard:+86-0514-87816911 E-mail:jsyzcdj@126.com Customer service de pa rinient :Tel: +86-0-13905275926